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Mon, 11 Dec 2023 03:37:47 GMT Received: from hu-kathirav-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Sun, 10 Dec 2023 19:37:42 -0800 From: Kathiravan Thirumoorthy Date: Mon, 11 Dec 2023 09:07:24 +0530 Subject: [PATCH v3 2/8] clk: qcom: ipq5332: enable few nssnoc clocks in driver probe MIME-Version: 1.0 Message-ID: <20231211-ipq5332-nsscc-v3-2-ad13bef9b137@quicinc.com> References: <20231211-ipq5332-nsscc-v3-0-ad13bef9b137@quicinc.com> In-Reply-To: <20231211-ipq5332-nsscc-v3-0-ad13bef9b137@quicinc.com> To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Richard Cochran , Catalin Marinas , Will Deacon CC: , , , , , , "Kathiravan Thirumoorthy" X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1702265852; l=4381; i=quic_kathirav@quicinc.com; s=20230906; h=from:subject:message-id; bh=TeJNUOHqEVQ9ZK3Jrj8vY3kVCraoKwelk2CGbMC4Boo=; b=3uAbcPugCsWdcHDaZJMj0XRRIxdHluBDNDpmNgWLvij1aGtHauxSUrqWc7yWmS7s/F+jyIs7S MF2LFm75i8DDc3BDfQ6IpCUvR6l0w8IbJDkGe9QdJcn06vgc/rnCrDF X-Developer-Key: i=quic_kathirav@quicinc.com; a=ed25519; pk=xWsR7pL6ch+vdZ9MoFGEaP61JUaRf0XaZYWztbQsIiM= X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: RD150OaFZtCC66Ao2Fa4vAatAYHW32qX X-Proofpoint-GUID: RD150OaFZtCC66Ao2Fa4vAatAYHW32qX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 phishscore=0 mlxlogscore=866 lowpriorityscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 adultscore=0 spamscore=0 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312110028 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231210_193757_424636_0FC9C7A5 X-CRM114-Status: GOOD ( 16.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org gcc_snoc_nssnoc_clk, gcc_snoc_nssnoc_1_clk, gcc_nssnoc_nsscc_clk are enabled by default and it's RCG is properly configured by bootloader. Some of the NSS clocks needs these clocks to be enabled. To avoid these clocks being disabled by clock framework, drop these entries from the clock table and enable it in the driver probe itself. Acked-by: Konrad Dybcio Signed-off-by: Kathiravan Thirumoorthy --- drivers/clk/qcom/gcc-ipq5332.c | 70 ++++++++---------------------------------- 1 file changed, 12 insertions(+), 58 deletions(-) diff --git a/drivers/clk/qcom/gcc-ipq5332.c b/drivers/clk/qcom/gcc-ipq5332.c index 66d5399798fe..38a570b68813 100644 --- a/drivers/clk/qcom/gcc-ipq5332.c +++ b/drivers/clk/qcom/gcc-ipq5332.c @@ -1672,24 +1672,6 @@ static struct clk_branch gcc_nssnoc_atb_clk = { }, }; -static struct clk_branch gcc_nssnoc_nsscc_clk = { - .halt_reg = 0x17030, - .halt_check = BRANCH_HALT, - .clkr = { - .enable_reg = 0x17030, - .enable_mask = BIT(0), - .hw.init = &(const struct clk_init_data) { - .name = "gcc_nssnoc_nsscc_clk", - .parent_hws = (const struct clk_hw*[]) { - &gcc_pcnoc_bfdcd_clk_src.clkr.hw, - }, - .num_parents = 1, - .flags = CLK_SET_RATE_PARENT, - .ops = &clk_branch2_ops, - }, - }, -}; - static struct clk_branch gcc_nssnoc_qosgen_ref_clk = { .halt_reg = 0x1701c, .halt_check = BRANCH_HALT, @@ -2585,42 +2567,6 @@ static struct clk_branch gcc_snoc_lpass_cfg_clk = { }, }; -static struct clk_branch gcc_snoc_nssnoc_1_clk = { - .halt_reg = 0x17090, - .halt_check = BRANCH_HALT, - .clkr = { - .enable_reg = 0x17090, - .enable_mask = BIT(0), - .hw.init = &(const struct clk_init_data) { - .name = "gcc_snoc_nssnoc_1_clk", - .parent_hws = (const struct clk_hw*[]) { - &gcc_system_noc_bfdcd_clk_src.clkr.hw, - }, - .num_parents = 1, - .flags = CLK_SET_RATE_PARENT, - .ops = &clk_branch2_ops, - }, - }, -}; - -static struct clk_branch gcc_snoc_nssnoc_clk = { - .halt_reg = 0x17084, - .halt_check = BRANCH_HALT, - .clkr = { - .enable_reg = 0x17084, - .enable_mask = BIT(0), - .hw.init = &(const struct clk_init_data) { - .name = "gcc_snoc_nssnoc_clk", - .parent_hws = (const struct clk_hw*[]) { - &gcc_system_noc_bfdcd_clk_src.clkr.hw, - }, - .num_parents = 1, - .flags = CLK_SET_RATE_PARENT, - .ops = &clk_branch2_ops, - }, - }, -}; - static struct clk_branch gcc_snoc_pcie3_1lane_1_m_clk = { .halt_reg = 0x2e050, .halt_check = BRANCH_HALT, @@ -3330,7 +3276,6 @@ static struct clk_regmap *gcc_ipq5332_clocks[] = { [GCC_NSSCC_CLK] = &gcc_nsscc_clk.clkr, [GCC_NSSCFG_CLK] = &gcc_nsscfg_clk.clkr, [GCC_NSSNOC_ATB_CLK] = &gcc_nssnoc_atb_clk.clkr, - [GCC_NSSNOC_NSSCC_CLK] = &gcc_nssnoc_nsscc_clk.clkr, [GCC_NSSNOC_QOSGEN_REF_CLK] = &gcc_nssnoc_qosgen_ref_clk.clkr, [GCC_NSSNOC_SNOC_1_CLK] = &gcc_nssnoc_snoc_1_clk.clkr, [GCC_NSSNOC_SNOC_CLK] = &gcc_nssnoc_snoc_clk.clkr, @@ -3398,8 +3343,6 @@ static struct clk_regmap *gcc_ipq5332_clocks[] = { [GCC_SDCC1_APPS_CLK_SRC] = &gcc_sdcc1_apps_clk_src.clkr, [GCC_SLEEP_CLK_SRC] = &gcc_sleep_clk_src.clkr, [GCC_SNOC_LPASS_CFG_CLK] = &gcc_snoc_lpass_cfg_clk.clkr, - [GCC_SNOC_NSSNOC_1_CLK] = &gcc_snoc_nssnoc_1_clk.clkr, - [GCC_SNOC_NSSNOC_CLK] = &gcc_snoc_nssnoc_clk.clkr, [GCC_SNOC_PCIE3_1LANE_1_M_CLK] = &gcc_snoc_pcie3_1lane_1_m_clk.clkr, [GCC_SNOC_PCIE3_1LANE_1_S_CLK] = &gcc_snoc_pcie3_1lane_1_s_clk.clkr, [GCC_SNOC_PCIE3_1LANE_M_CLK] = &gcc_snoc_pcie3_1lane_m_clk.clkr, @@ -3660,7 +3603,18 @@ static const struct qcom_cc_desc gcc_ipq5332_desc = { static int gcc_ipq5332_probe(struct platform_device *pdev) { - return qcom_cc_probe(pdev, &gcc_ipq5332_desc); + struct regmap *regmap; + + regmap = qcom_cc_map(pdev, &gcc_ipq5332_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + /* Keep the critical clocks always-On */ + regmap_update_bits(regmap, 0x17030, BIT(0), BIT(0)); /* gcc_nssnoc_nsscc_clk */ + regmap_update_bits(regmap, 0x17084, BIT(0), BIT(0)); /* gcc_snoc_nssnoc_clk */ + regmap_update_bits(regmap, 0x17090, BIT(0), BIT(0)); /* gcc_snoc_nssnoc_1_clk */ + + return qcom_cc_really_probe(pdev, &gcc_ipq5332_desc, regmap); } static const struct of_device_id gcc_ipq5332_match_table[] = {